[BUG] Routes generated with Headers and no content results in TypeErrors

[spacether]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

When generating a client from a spec that includes responses with no content and headers the generated code has type errors and cannot be used. Attempting to import an api results in the following output.

>>> from openapi_client.apis.tags import project_api
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/lberhane-meskel/WorkRepos/openapi/openapi_client/apis/tags/project_api.py", line 12, in <module>
    from openapi_client.paths.projects.post import CreateProject
  File "/Users/lberhane-meskel/WorkRepos/openapi/openapi_client/paths/projects/post.py", line 109, in <module>
    class ApiResponseFor201(api_client.ApiResponse):
  File "/Users/lberhane-meskel/.pyenv/versions/3.8.7/lib/python3.8/dataclasses.py", line 1019, in dataclass
    return wrap(cls)
  File "/Users/lberhane-meskel/.pyenv/versions/3.8.7/lib/python3.8/dataclasses.py", line 1011, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash, frozen)
  File "/Users/lberhane-meskel/.pyenv/versions/3.8.7/lib/python3.8/dataclasses.py", line 925, in _process_class
    _init_fn(flds,
  File "/Users/lberhane-meskel/.pyenv/versions/3.8.7/lib/python3.8/dataclasses.py", line 502, in _init_fn
    raise TypeError(f'non-default argument {f.name!r} '
TypeError: non-default argument 'headers' follows default argument

openapi-generator version

6.2.1

OpenAPI declaration file content or url

https://gist.github.com/LeulBM/07fc708a6466de98af5fcee0cf47d97a

Generation Details

openapi-generator generate -g python -i spec.yaml

Steps to reproduce

1. Generate client using above command
2. Attempt to import the api
   from openapi_client.apis.tags import artifact_api

Suggest a fix

The issue seems to have to do with responses that have headers and no content, such as the 200 response at 98 in the spec file.

Copied from OpenAPITools/openapi-generator#14267
Thank you for filing it @LeulBM

[spacether]

@LeuBM I see the following error in you spec per vacuum

• security values must match a scheme defined in components.securitySchemes
  • $.security[0]

[spacether]

This fixes the security issue:

openapi: 3.0.1
info:
  title: Harbor API
  description: These APIs provide services for manipulating Harbor project.
  version: "2.0"
servers:
 - url: https://{env}-[URL]
   description: 'Harbor Server'
   variables:
     env:
      enum:
        - 'preprod'
        - 'prod'
      default: 'preprod'
security:
- basic: []
paths:
  /projects/{project_name}/repositories/{repository_name}/artifacts/{reference}/tags:
    get:
      tags:
      - artifact
      summary: List tags
      description: List tags of the specific artifact
      operationId: listTags
      parameters:
      - name: X-Request-Id
        in: header
        description: An unique ID for the request
        schema:
          minLength: 1
          type: string
      - name: project_name
        in: path
        description: The name of the project
        required: true
        schema:
          type: string
      - name: repository_name
        in: path
        description: The name of the repository. If it contains slash, encode it with
          URL encoding. e.g. a/b -> a%252Fb
        required: true
        schema:
          type: string
      - name: reference
        in: path
        description: The reference of the artifact, can be digest or tag
        required: true
        schema:
          type: string
      - name: q
        in: query
        description: Query string to query resources. Supported query patterns are
          "exact match(k=v)", "fuzzy match(k=~v)", "range(k=[min~max])", "list with
          union releationship(k={v1 v2 v3})" and "list with intersetion relationship(k=(v1
          v2 v3))". The value of range and list can be string(enclosed by " or '),
          integer or time(in format "2020-04-09 02:36:00"). All of these query patterns
          should be put in the query string "q=xxx" and splitted by ",". e.g. q=k1=v1,k2=~v2,k3=[min~max]
        schema:
          type: string
      - name: sort
        in: query
        description: Sort the resource list in ascending or descending order. e.g.
          sort by field1 in ascending orderr and field2 in descending order with "sort=field1,-field2"
        schema:
          type: string
      - name: page
        in: query
        description: The page number
        schema:
          type: integer
          format: int64
          default: 1
      - name: page_size
        in: query
        description: The size of per page
        schema:
          maximum: 100
          type: integer
          format: int64
          default: 10
      - name: with_signature
        in: query
        description: Specify whether the signature is included inside the returning
          tags
        schema:
          type: boolean
          default: false
      - name: with_immutable_status
        in: query
        description: Specify whether the immutable status is included inside the returning
          tags
        schema:
          type: boolean
          default: false
      responses:
        200:
          description: Success
          headers:
            X-Total-Count:
              description: The total count of tags
              schema:
                type: integer
            Link:
              description: Link refers to the previous page and next page
              schema:
                type: string
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Tag'
        400:
          description: Bad request
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        401:
          description: Unauthorized
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        403:
          description: Forbidden
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        404:
          description: Not found
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        500:
          description: Internal server error
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
    post:
      tags:
      - artifact
      summary: Create tag
      description: Create a tag for the specified artifact
      operationId: createTag
      parameters:
      - name: X-Request-Id
        in: header
        description: An unique ID for the request
        schema:
          minLength: 1
          type: string
      - name: project_name
        in: path
        description: The name of the project
        required: true
        schema:
          type: string
      - name: repository_name
        in: path
        description: The name of the repository. If it contains slash, encode it with
          URL encoding. e.g. a/b -> a%252Fb
        required: true
        schema:
          type: string
      - name: reference
        in: path
        description: The reference of the artifact, can be digest or tag
        required: true
        schema:
          type: string
      requestBody:
        description: The JSON object of tag.
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Tag'
        required: true
      responses:
        201:
          description: Created
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
            Location:
              description: The location of the resource
              schema:
                type: string
        400:
          description: Bad request
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        401:
          description: Unauthorized
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        403:
          description: Forbidden
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        404:
          description: Not found
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        405:
          description: Method not allowed
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        409:
          description: Conflict
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
        500:
          description: Internal server error
          headers:
            X-Request-Id:
              description: The ID of the corresponding request for the response
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
      x-codegen-request-body-name: tag
components:
  securitySchemes:
    basic:
      type: http
      scheme: basic
  schemas:
    Errors:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/Error'
      description: The error array that describe the errors got during the handling
        of request
    Error:
      type: object
      properties:
        code:
          type: string
          description: The error code
        message:
          type: string
          description: The error message
      description: a model for all the error response coming from harbor
    Tag:
      type: object
      properties:
        id:
          type: integer
          description: The ID of the tag
          format: int64
        repository_id:
          type: integer
          description: The ID of the repository that the tag belongs to
          format: int64
        artifact_id:
          type: integer
          description: The ID of the artifact that the tag attached to
          format: int64
        name:
          type: string
          description: The name of the tag
        push_time:
          type: string
          description: The push time of the tag
          format: date-time
        pull_time:
          type: string
          description: The latest pull time of the tag
          format: date-time
        immutable:
          type: boolean
          description: The immutable status of the tag
          x-omitempty: false
        signed:
          type: boolean
          description: The attribute indicates whether the tag is signed or not
          x-omitempty: false